I grew up just a few minutes away from the ocean and would like to live again in a place close to the sea. The first two lines here describe really well (and beautifully) what it's like and how it feels when big weather is about to strike and then does. The light really is "black," "ecstatic," and "weird." I assume "old" probably applies equally well to the north Atlantic as it does to the Pacific; it must have something to do with the north part. It seems less old in warmer places. Curtis